Preheat oven to 350 F. Grease and lightly flour
2 round layer pans. Cream sugar and shortening. Beat in water and
eggs. Sift together flour and other dry ingredients and add to
batter. Combine: milk and lemon juice or vinegar to make sour
milk. (It will curdle). Blend in prune juice, sour milk and
prunes. Pour into prepared pans and bake 30-40 mins.Cool, remove
from pans and frost with Caramel frosting below. Cake will get
better the longer it sits.